EP0007565A1 - Process for the preparation of a component for polymerisation catalysts - Google Patents

Process for the preparation of a component for polymerisation catalysts Download PDF

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Publication number
EP0007565A1
EP0007565A1 EP79102511A EP79102511A EP0007565A1 EP 0007565 A1 EP0007565 A1 EP 0007565A1 EP 79102511 A EP79102511 A EP 79102511A EP 79102511 A EP79102511 A EP 79102511A EP 0007565 A1 EP0007565 A1 EP 0007565A1
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titanium tetrachloride
weight
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resulting
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EP0007565B1 (en
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Gerhard Dr. Staiger
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Definitions

  • the present invention relates to a method for producing a titanium component for polymerization catalysts of the Ziegler-Natta type, in particular for the homo- and copolymerization of C 2 - to C 6 -oG monoolefins.
  • Methods of the type mentioned are known in a number of variants; they are primarily aimed at the goal of obtaining those titanium components which, after activation with organoaluminum compounds or the like, give catalysts which, in the polymerization of the olefins, give high specific yields of polyolefins and / or polyolefins with a relatively high proportion lead stereoregular polymer.
  • Other goals are to obtain the polyolefins in a form which is easy to handle, in an easily processable form and with the desired application properties; - The latter can go in different directions depending on the intended use.
  • the present invention was based on the object of demonstrating a method of the type defined at the outset with which it is possible to obtain those titanium components which have technically advanced properties and, in particular, e.g. enable to obtain polymers - especially those which are produced by suspension polymerization in liquid monomers - which have particularly good morphological properties, i.e. are easy to handle and process.
  • the object can be achieved if, in a first step, a certain magnesium alcoholate is ground together with benzoyl chloride under certain conditions, and then the substance resulting from the first step under certain conditions, in particular also certain temperature conditions, in one second and a separate subsequent third stage, reacted with titanium tetrachloride.
  • the material side of the new process does not require any special features, because components (1.1) and (1.2) are well known from organic chemistry.
  • the alcoholates (1.1) which are particularly suitable are those which are derived from ethyl, n-propyl, i-propyl, n-butyl, sec-butyl or tert-butyl alcohol.
  • the titanium tetrachloride (2.2) and (3.2) to be used should expediently be of the type which is usually used for polymerization catalysts.
  • the implementation of the method according to the invention is simple and is possible for the person skilled in the art without explanations. Only for stages (2) and (3) it should be mentioned that the resulting solid is advantageously isolated by suction and the excess titanium tetrachloride is expediently washed by means of a liquid hydrocarbon - until it no longer absorbs titanium tetrachloride.
  • the liquid hydrocarbon in question here can be a hydrocarbon of the type which is usually associated with Titanium components for Ziegler-Natta type catalysts are brought together without damage to the catalyst or its titanium component; - For example, in the polymerization of ⁇ -monoolefins. Examples of suitable hydrocarbons are: pentanes, hexanes, heptanes, gasolines and cyclohexane.
  • the titanium components for catalysts of the Ziegler-Natta type produced by the process according to the invention can be used in the polymerization of ⁇ -olefins in a conventional manner, ie these titanium components are generally used together with an organometallic activator, in particular with Aluminum alkyl compounds of the formulas Al (alkyl) 3 or ClAl (alkyl) 2 , which have 1 to 8 carbon atoms per alkyl radical, and especially with triethyl aluminum or diethyl aluminum chloride.
  • the new titanium components in the polymerization not only together with activators of the type mentioned above, but also with the usual promoters.
  • the esters of C 1 -C 4 -alkanols with p-alkyl or - preferably - p-alkoxybenzoic acids with C 1 -C 4 -alkyl or alkoxy groups have proven particularly useful; - for which a typical example is the aniseic acid ethyl ester.
  • the titanium components produced by the process according to the invention give particularly good results in the dry polymerization of ⁇ -olefins, ie the polymerization in the absence of liquid auxiliary media; but also polymerization in the presence of liquid auxiliary media is possible with good success.
  • the molecular weight can be adjusted by the usual regulators, especially hydrogen, to adjust.
  • Particularly suitable ⁇ -olefins to be polymerized are those with 2 to 6 carbon atoms, in particular propylene, butene-1 and 4-methylpentene-1, and - for copolymerization - ethylene.
  • a titanium component which has a titanium content of 4.5% by weight and a chlorine content of 61.9% by weight.

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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

A special process for the preparation of a titanium component for polymerization catalysts of the Ziegler-Natta type, wherein (1) in a first stage (1.1) an alcoholate of the formula Mg(OR)2, where R is lower alkyl, and (1.2) benzoyl chloride are milled together in a particular molar ratio in a vibratory ball mill under particular milling conditions, especially a relatively low temperature, in the absence of a diluent, thereafter (2) in a second stage (2.1) the material resulting from stage (1) is brought together with (2.2) titanium tetrachloride in a particular ratio, the batch is kept at an elevated temperature for some time, with constant mixing, and the resulting solid is isolated, excess titanium tetrachloride being removed, and finally (3) in a third stage (3.1) the solid resulting from stage (2) is again brought together with (3.2) titanium tetrachloride in a particular ratio, the batch is again kept at an elevated temperature for some time, with constant mixing, and the resulting solid, constituting the novel titanium component, is isolated, excess titanium tetrachloride being removed. The novel titanium component permits the preparation of alpha -monoolefin polymers in high yield and with high isotacticity.

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen einer Titan-Komponente für Polymerisationskatalysatoren des Ziegler-Natta-Typs, insbesondere zur Homo-und Copolymerisation von C2- bis C6-oG-Monoolefinen.The present invention relates to a method for producing a titanium component for polymerization catalysts of the Ziegler-Natta type, in particular for the homo- and copolymerization of C 2 - to C 6 -oG monoolefins.

Verfahren der genannten Art sind in einer Reihe von Varianten bekannt; sie sind vornehmlich auf das Ziel gerichtet, solche Titankomponenten zu gewinnen, die - nach dem Aktivieren mit aluminiumorganischen Verbindungen oder dergleichen - Katalysatoren ergeben, die bei der Polymerisation der Olefine zu hohen spezifischen Ausbeuten an Polyolefinen und/oder zu Polyolefinen mit einem relativ hohen Anteil an stereoregulärem Polymerisat führen. Weitere Ziele sind, die Polyolefine in gut handhabbarer Form, in leicht weiter zu verarbeitender Form und mit den erwünschten anwendungstechnischen Eigenschaften zu erhalten; - wobei letzere je nach dem vorgesehenen Verwendungszweck in unterschiedliche Richtungen gehen können.Methods of the type mentioned are known in a number of variants; they are primarily aimed at the goal of obtaining those titanium components which, after activation with organoaluminum compounds or the like, give catalysts which, in the polymerization of the olefins, give high specific yields of polyolefins and / or polyolefins with a relatively high proportion lead stereoregular polymer. Other goals are to obtain the polyolefins in a form which is easy to handle, in an easily processable form and with the desired application properties; - The latter can go in different directions depending on the intended use.

Die bekannten Verfahren haben zu beachtlichen Erfolgen geführt; jedoch ist meist noch zu bemängeln, daß die entsprechenden Titankomponenten beim Einsatz im Rahmen von Katalysatoren des Ziegler-Natta-typs bei der Polymerisation von α-olofinen einerseits zwar zu Polymerisaten führen, die eine relativ hohe Stereoregularität (Isotaktizität) haben, andererseits aber die Polymerisate nur in relativ geringen spezifischen Ausbeuten liefern; - oder vice versa. Es kommt hinzu, daß im allgemeinen auch anderweitige Wünsche noch offen bleiben, z.B. hinsichtlich der erwähnten anwendungstechnischen Eigenschaften.The known methods have led to considerable success; However, it is usually still to be criticized that the corresponding titanium components when used in the context of Ziegler-Natta-type catalysts in the polymerization of α-olofins on the one hand lead to polymers which have a relatively high stereoregularity (isotacticity) but on the other hand only deliver the polymers in relatively low specific yields; - or vice versa. In addition, other wishes generally remain open, for example with regard to the application properties mentioned.

Der vorliegenden Erfindung lag die Aufgabe zugrunde, ein Verfahren der eingangs definierten Art aufzuzeigen, mit dem es möglich ist, solche Titankomponenten zu erhalten, die technisch fortschrittliche Eigenschaften mit sich bringen und es insbesondere z.B. ermöglichen, Polymerisate zu gewinnen - vor allem solche, die durch Suspensionspolymerisation in flüssigem Monomeren hergestellt werden - die besonders gute morphologische Eigenschaften besitzen, d.h. gut zu handhaben und zu verarbeiten sind.The present invention was based on the object of demonstrating a method of the type defined at the outset with which it is possible to obtain those titanium components which have technically advanced properties and, in particular, e.g. enable to obtain polymers - especially those which are produced by suspension polymerization in liquid monomers - which have particularly good morphological properties, i.e. are easy to handle and process.

Es wurde gefunden, daß die gestellte Aufgabe gelöst werden kann, wenn man zunächst in einer ersten Stufe ein bestimmtes Magnesiumalkoholat mit Benzoylchlorid unter bestimmten Bedingungen miteinander vermahlt, und dann den aus der ersten Stufe resultierenden Stoff unter bestimmten Bedingungen, insbesondere auch bestimmten Temperaturbedingungen, in einer zweiten sowie einer davon getrennten anschließenden dritten Stufe, mit Titantetrachlorid umsetzt.It has been found that the object can be achieved if, in a first step, a certain magnesium alcoholate is ground together with benzoyl chloride under certain conditions, and then the substance resulting from the first step under certain conditions, in particular also certain temperature conditions, in one second and a separate subsequent third stage, reacted with titanium tetrachloride.

Dementsprechend ist der Gegenstand der vorliegenden Erfindung ein Verfahren zum Herstellen einer Titan-Komponente für Polymerisationskatalysatoren des Ziegler-Natta-Typs, mit dem kennzeichnenden Merkmal, daß man zunächst

  • (1) in einer erstes Stufe
    • (1.1) 100 Gewichtsteile einer Alkoholats der allgemainen Formel Mg(OR)2, worin R steht für eine 1 bie 6, vorzugsweise 2 bis 4 Kohlenstoffatome aufweisende Alkylgruppe; mit
    • (1.2) soviel Gewichtsteilen Benzoylchlorid wie sie einem Molverhältnis Alkoholat (1.1) : Benzoylchlorid (1.2) von 100 : 5 bis 100 : 100, vorzugsweise 100 : 10 bis 100 : 50 entsprechen;

    in einer Kugelschwingmühle unter einer Mahlbeschleunigung von 30 bis 80, vorzugsweise 45 bis 55 m . sec-2 über eine Zeitspanne von 2 bis 100, vorzugsweise 5 bis 50 Stunden bei einer Temperatur von -50 bis +10, vorzugsweise -30 bis -10°C in Abwesenheit von Verdünnungsmitteln miteinander vermahlt; dann
  • (2) in einer zweiten Stufe
    • (2.1) 100 Gewichtsteile des aus Stufe (1) resultierenden Stoffes mit
    • (2.2) 300 bis 1800, vorzugsweise 500 bis 1000 Gewichtsteilen Titantetrachlorid

    zusammenbringt, das Ganze unter ständiger Durchmischung 0,1 bis 5, vorzugsweise 0,5 bis 2 Stunden auf einer Temperatur im Bereich von 40 bis 180, vorzugsweise 70 bis 100°C hält und den dabei resultierenden Feststoff unter Abtrennung überschüssigen Titantetrachlorids isoliert, und schließlich
  • (3) in einer dritten Stufe '
    • (3.1) 100 Gewichtsteile des aus Stufe (2) resultierenden Feststoffes erneut mit
    • (3.2) 300 bis 1800, vorzugsweise 500 bis 1000 Gewichtsteilen Titantetrachlorid

    zusammenbringt, das Ganze unter ständiger Durchmischung 0,1 bis 5, vorzugsweise 0,5 bis 2 Stunden auf einer Temperatur im Bereich von 40 bis 180, vorzugsweise 120 bis 140°C hält und den dabei resultierenden Feststoff unter Abtrennung überschüssigen Titantetrachlorids isoliert.
Accordingly, the object of the present invention is a process for the production of a titanium component for polymerization catalysts of the Ziegler-Natta type, with the characteristic feature that first of all
  • (1) in a first stage
    • (1.1) 1 00 parts by weight of an alcoholate of allgemainen formula Mg (OR) 2, wherein R stands for a 1 bie 6, preferably 2 to 4 carbon atoms which alkyl group; With
    • (1.2) as many parts by weight of benzoyl chloride as they correspond to a molar ratio of alcoholate (1.1): benzoyl chloride (1.2) of 100: 5 to 100: 100, preferably 100: 10 to 100: 50;

    in a vibrating ball mill with a grinding acceleration of 30 to 80, preferably 45 to 5, 5 m. sec -2 ground together over a period of 2 to 100, preferably 5 to 50 hours at a temperature of -50 to +10, preferably -30 to -10 ° C in the absence of diluents; then
  • (2) in a second stage
    • (2.1) 100 parts by weight of the substance resulting from stage (1)
    • (2.2) 300 to 1800, preferably 500 to 1000 parts by weight of titanium tetrachloride

    brings together, the whole with constant mixing 0.1 to 5, preferably 0.5 to 2 hours at a temperature in the range of 40 to 180, preferably 70 to 100 ° C and the resulting solid is isolated with removal of excess titanium tetrachloride, and finally
  • (3) in a third stage '
    • ( 3 .1) 100 parts by weight of the solid resulting from step (2) again with
    • (3.2) 300 to 1800, preferably 500 to 1000 parts by weight of titanium tetrachloride

    brings together, the whole with constant mixing 0.1 to 5, preferably 0.5 to 2 hours at a temperature in the range of 40 to 180, preferably 120 to 140 ° C and the resulting solid is isolated with removal of excess titanium tetrachloride.

Die stoffliche Seite des neuen Verfahrens bedingt keine Besonderheiten, denn die Komponenten (1.1) und (1.2) sind aus der organischen Chemie wohlbekannt. Zu erwähnen ist allenfalls, daß sich als Alkoholate (1.1) vor allem die eignen, die abgeleitet sind vom Äthyl-, n-Propyl-, i-Propyl, n-Butyl-, sec-Butyl oder tert-Butylalkohol. Das zu verwendende Titantetrachlorid (2.2) und (3.2) sollte zweckmäßigerweise von der Art sein, die üblicherweise für Polymerisationskatalysatoren eingesetzt wird.The material side of the new process does not require any special features, because components (1.1) and (1.2) are well known from organic chemistry. At most it should be mentioned that the alcoholates (1.1) which are particularly suitable are those which are derived from ethyl, n-propyl, i-propyl, n-butyl, sec-butyl or tert-butyl alcohol. The titanium tetrachloride (2.2) and (3.2) to be used should expediently be of the type which is usually used for polymerization catalysts.

Die Durchführung des erfindungsgemäßen Verfahrens ist einfach und für den Fachmann ohne Erläuterungen möglich. Lediglich zu den Stufen (2) und (3) ist zu erwähnen, daß die Isolierung des jeweils resultierenden Feststoffs zweckmäßigerweise durch Absaugen und die Abtrennung überschüssigen Titantetrachlorids zweckmäßigerweise durch Waschen mit einem flüssigen Kohlenwasserstoff - bis dieser kein Titantetrachlorid mehr aufnimmt - erfolgt. Der hierbei in Betracht kommende flüssige Kohlenwasserstoff kann ein Kohlenwasserstoff der Art sein, die üblicherweise mit Titan-Komponenten für Katalysatoren des Ziegler-Natta-Typs ohne Schaden für den Katalysator bzw. dessen Titan-Komponente zusammengebracht wird; - z.B. bei der Polymerisation von α-Monoolefinen. Als Beispiele für geeignete Kohlenwasserstoffe seien genannt: Pentane, Hexane, Heptane, Benzine und Cyclohexan.The implementation of the method according to the invention is simple and is possible for the person skilled in the art without explanations. Only for stages (2) and (3) it should be mentioned that the resulting solid is advantageously isolated by suction and the excess titanium tetrachloride is expediently washed by means of a liquid hydrocarbon - until it no longer absorbs titanium tetrachloride. The liquid hydrocarbon in question here can be a hydrocarbon of the type which is usually associated with Titanium components for Ziegler-Natta type catalysts are brought together without damage to the catalyst or its titanium component; - For example, in the polymerization of α-monoolefins. Examples of suitable hydrocarbons are: pentanes, hexanes, heptanes, gasolines and cyclohexane.

Die nach dem erfindungsgemäßen Verfahren hergestellten Titan-Komponenten für Katalysatoren des Ziegler-Natta-Typs lassen sich bei der Polymerisation von α-Olefinen in einschlägig üblicher Weise einsetzen, d.h. man wird diese Titan-Komponenten im allgemeinen zusammen mit einem metallorganischen Aktivator verwenden, insbesondere mit Aluminiumalkylverbindungen der Formeln Al(Alkyl)3 bzw. ClAl(Alkyl)2, die 1 bis 8 Kohlenstoffatome per Alkylrest aufweisen, und vor allem mit Triäthylaluminium bzw. Di- äthylaluminiumchlorid.The titanium components for catalysts of the Ziegler-Natta type produced by the process according to the invention can be used in the polymerization of α-olefins in a conventional manner, ie these titanium components are generally used together with an organometallic activator, in particular with Aluminum alkyl compounds of the formulas Al (alkyl) 3 or ClAl (alkyl) 2 , which have 1 to 8 carbon atoms per alkyl radical, and especially with triethyl aluminum or diethyl aluminum chloride.

Wie sich gezeigt hat, ist es in vielen Fällen von Vorteil, die neuen Titan-Komponenten bei der Polymerisation nicht nur zusammen mit Aktivatoren der vorerwähnten Art zu verwenden, sondern auch zusätzlich mit einschlägig üblichan Promotoren. Dabei haben sich im gegebenen Zusammenhang besonders bewährt die Ester von C1- bis C4-Alkanolen mit p-Alkyl- oder - vorzugsweise - p-Alkoxybenzoesäuren mit C1- bis C4-Alkyl- bzw. Alkoxygruppen; - wofür ein typisches Beispiel der Anissäureäthylester ist.As has been shown, it is in many cases advantageous to use the new titanium components in the polymerization not only together with activators of the type mentioned above, but also with the usual promoters. In this context, the esters of C 1 -C 4 -alkanols with p-alkyl or - preferably - p-alkoxybenzoic acids with C 1 -C 4 -alkyl or alkoxy groups have proven particularly useful; - for which a typical example is the aniseic acid ethyl ester.

Die nach dem erfindungsgemäßen Verfahren hergestellten Titan-Komponenten liefern besonders gute Ergebnisse bei der Trockenpolymerisation von α-Olefinen, d.h. der Polymerisation in Abwesenheit flüssiger Hilfsmedien; aber auch die Polymerisation in Anwesenheit.flüssiger Hilfsmedien ist mit gutem Erfolg möglich. Das Molekulargewicht läßt sich durch die üblichen Regler, insbesondere Wasserstoff, einstellen. Besonders geeignete zu polymerisierende α-Olefine sind solche mit 2 bis 6 Kohlenstoffatomen, insbesondere Propylen, Buten-1 und 4-Methylpenten-1, sowie - zur Copolymerisation - Äthylen.The titanium components produced by the process according to the invention give particularly good results in the dry polymerization of α-olefins, ie the polymerization in the absence of liquid auxiliary media; but also polymerization in the presence of liquid auxiliary media is possible with good success. The molecular weight can be adjusted by the usual regulators, especially hydrogen, to adjust. Particularly suitable α-olefins to be polymerized are those with 2 to 6 carbon atoms, in particular propylene, butene-1 and 4-methylpentene-1, and - for copolymerization - ethylene.

Beispielexample

A). Herstellen der Titan-Komponente des Polymerisationskatalysators

  • (1) In der ersten Stufe werden
    • (1.1) 100 Gewichtsteile Magnesiumäthylat, Mg(OC2H5)2, mit
    • (1.2) soviel (20,5) Gewichtsteilen Benzoylchlorid wie sie einem Molverhältnis Alkoholat (1.1) : Benzoylchlorid (1.2) von 100 : 16,7 entsprechen

    in einer Kugelschwingmühle unter einer Mahlbeschleunigung von 51 m . sec-2 über eine Zeitspanne von 15 Stunden bei einer Temperatur von -20°C in Abwesenheit von Verdünnungsmitteln miteinander vermahlen.
  • (2) In der zweiten Stufe werden
    • (2.1) 100 Gewichtsteile des aus Stufe (1) resultierenden Stoffes mit
    • (2.2) 600 Gewichtsteilen Titantetrachlorid

    zusammengebracht und das Ganze unter ständigem Rühren 1 Stunde auf einer Temperatur im Bereich von 75 bis 85°C gehalten. Danach wird der resultierende Feststoff durch Filtration und Nachwaschen mit n-Heptan isoliert, wobei das Nachwaschen solange erfolgt, bis sich im ' Filtrat kein Titantetrachlorid mehr nachweisen läßt.
  • (3) In der dritten Stufe werden
    • (3.1) 100 Gewichtsteile des aus Stufe (2) resultierenden Feststoffes erneut mit
    • (3.2) 650 Gewichtsteilen Titantetrachlorid

    zusammengebracht und das Ganze unter ständigem Rühren 1 Stunde auf einer Temperatur im Bereich von 128 bis 1320C gehalten. Danach wird der resultierende Feststoff durch Filtration und Nachwaschen mit n-Heptan isoliert, wobei das Nachwaschen solange erfolgt, bis sich im Filtrat kein Titantetrachlorid mehr nachweisen läßt.
A). Manufacture of the titanium component of the polymerization catalyst
  • (1) In the first stage
    • (. 1 1) 1 00 parts by weight of magnesium ethylate, Mg (OC 2 H 5) 2,
    • (1.2) as much (20.5) parts by weight of benzoyl chloride as they correspond to a molar ratio of alcoholate (1.1): benzoyl chloride (1.2) of 100: 16.7

    in a vibrating ball mill with a grinding acceleration of 51 m. Grind sec -2 over a period of 15 hours at a temperature of -20 ° C in the absence of diluents.
  • (2) In the second stage
    • (2.1) 100 parts by weight of the substance resulting from stage (1)
    • (2.2) 600 parts by weight of titanium tetrachloride

    brought together and kept stirring at a temperature in the range of 75 to 85 ° C for 1 hour. The resulting solid is then isolated by filtration and washing with n-heptane, washing is carried out until titanium tetrachloride can no longer be detected in the filtrate.
  • (3) In the third stage
    • (3.1) 100 parts by weight of the solid resulting from stage (2) again with
    • (3.2) 650 parts by weight of titanium tetrachloride

    brought together and kept at a temperature in the range of 128 to 132 0 C with constant stirring for 1 hour. The resulting solid is then isolated by filtration and washing with n-heptane, washing being carried out until titanium tetrachloride can no longer be detected in the filtrate.

Auf diese Weise-wird eine Titan-Komponente erhalten, die einen Titangehalt von 4,5 Gew.% und einen Chlorgehalt von 61,9 Gew.% aufweist.In this way, a titanium component is obtained which has a titanium content of 4.5% by weight and a chlorine content of 61.9% by weight.

B) Polymerisation mittels der Titan-Komponente

  • Ein Rührgefäß wird mit 500 ml n-Heptan, 0,4 g der Titan-Komponente, 10 mMol Aluminiumtriäthyl sowie 2 mMol Anissäureäthylester (als Promotor) beschickt.
  • Die eigentliche Polymerisation wird unter ständigem Rühren bei 60°C während 3 Stunden durchgeführt mit Propylen als Monomer, dessen Druck während der Polymerisation konstant auf 1 bar gehalten wird.
  • Das Polymerisat wird hierbei mit einer Ergiebigkeit von 517 g Polypropylen pro g Titan-Komponente erhalten; es weist 8,8 % in siedendem n-Heptan löslicher Anteile auf.
B) Polymerization using the titanium component
  • A stirring vessel is charged with 500 ml of n-heptane, 0.4 g of the titanium component, 10 mmol of aluminum triethyl and 2 mmol of aniseic acid ethyl ester (as a promoter).
  • The actual polymerization is carried out with constant stirring at 60 ° C. for 3 hours with propylene as a monomer, the pressure of which is kept constant at 1 bar during the polymerization.
  • The polymer is obtained with a yield of 517 g polypropylene per g titanium component; it has 8.8% fractions soluble in boiling n-heptane.

Claims (1)

Verfahren zum Herstellen einer Titan-Komponente für Polymerisationskatalysatoren des Ziegler-Natta-Typs, dadurch-gekennzeichnet, daß man zunächst (1) in einer ersten Stufe (1.1) 100 Gewichtsteile eines Alkoholats der allgemeinen Formel Mg(OR)2, worin R steht für eine 1 bis 6 Kohlenstoffatome aufweisende Alkylgruppe; mit (1.2) soviel Gewichtsteilen Benzoylchlorid wie sie einem Molverhältnis Alkoholat (1.1) : Benzoylchlorid (1.2) von 100 : 5 bis 100 : 100 entsprechen;
in einer Kugelschwingmühle unter einer Mahlbeschleuni= gung von 30 bis 80 m . sec-2 über eine Zeitspanne von 2 bis 100 Stunden bei einer Temperatur von -50 bis +10°C in Abwesenheit von Verdünnungsmitteln miteinander vermahlt; dann (2) in einer zweiten Stufe (2.1) 100 Gewichtsteile des aus Stufe (1) resultiezenden Stoffes mit (2.2) 300 bis 1800 Gewichtsteilen Titantetrachlorid
zusammenbringt, das Ganze unter ständiger Durchmischung 0,1 bis 5 Stunden auf einer Temperatur im Bereich von 40 bis 180°C hält und den dabei resultierenden Feststoff unter Abtrennung überschüssigen Titan- tetrachlorids isoliert, und schließlich (3) in einer dritten Stufe (3.1) 100 Gewichtsteile des aus Stufe (2) resultierenden Feststoffes erneut mit (3.2) 300 bis 1800 Gewichtsteilen Titantetrachlorid
zusammenbringt, das Ganze unter ständiger Durchmischung 0,1 bis 5 Stunden auf einer Temperatur im Bereich von 40 bis 180°C hält und den dabei resultierenden Feststoff unter Abtrennung überschüssigen Titantetrachlorids isoliert. Process for producing a titanium component for polymerization catalysts of the Ziegler-Natta type, characterized in that: (1) in a first stage (1.1) 100 parts by weight of an alcoholate of the general formula Mg (OR) 2 , in which R represents an alkyl group having 1 to 6 carbon atoms; With (1 .2) as many parts by weight of benzoyl chloride as a molar ratio alkoxide (1.1): benzoyl chloride (1.2), of 100: 5 to 100: corresponding to 100;
in a vibrating ball mill with a grinding acceleration of 30 to 80 m. sec -2 ground together over a period of 2 to 100 hours at a temperature of -50 to + 10 ° C in the absence of diluents; then (2) in a second stage (2.1) 100 parts by weight of the substance resulting from stage (1) (2.2) 300 to 1800 parts by weight of titanium tetrachloride
brings together, the whole with constant mixing for 0.1 to 5 hours at a temperature in the range of 40 to 180 ° C and the resulting Solid isolated with removal of excess titanium tetrachloride, and finally (3) in a third stage (3.1) 100 parts by weight of the solid resulting from stage (2) again with (3.2) 300 to 1800 parts by weight of titanium tetrachloride
brings together, the whole with constant mixing for 0.1 to 5 hours at a temperature in the range of 40 to 180 ° C and the resulting solid is isolated with removal of excess titanium tetrachloride.
EP79102511A 1978-07-20 1979-07-18 Process for the preparation of a component for polymerisation catalysts Expired EP0007565B1 (en)

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AT79102511T ATE6068T1 (en) 1978-07-20 1979-07-18 PROCESS FOR MAKING A COMPONENT FOR POLYMERIZATION CATALYSTS.

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DE19782831830 DE2831830A1 (en) 1978-07-20 1978-07-20 METHOD FOR PRODUCING A COMPONENT FOR POLYMERIZATION CATALYSTS
DE2831830 1978-07-20

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EP0007565A1 true EP0007565A1 (en) 1980-02-06
EP0007565B1 EP0007565B1 (en) 1984-02-01

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EP (1) EP0007565B1 (en)
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP0036536A1 (en) * 1980-03-15 1981-09-30 BASF Aktiengesellschaft Process for producing alpha monoolefin homo and copolymers
EP0070749A1 (en) * 1981-07-20 1983-01-26 Société Chimique des Charbonnages Homogeneous catalyst containing a transition metal and magnesium, process for its preparation and its use in the polymerisation of ethylene
EP0135973A2 (en) * 1983-09-20 1985-04-03 Shell Internationale Researchmaatschappij B.V. Olefin polymerization catalyst components and polymerization process
EP0136112A2 (en) * 1983-08-30 1985-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Catalyst component for polymerization of olefins

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CA1141093A (en) * 1979-05-17 1983-02-08 Brian L. Goodall Olefin polymerization catalyst compositions and a process for the polymerization of olefins employing such compositions
US4367161A (en) * 1981-01-23 1983-01-04 Gulf Research & Development Company Novel polymerization catalyst and process for using same to polymerize olefins
US4347162A (en) * 1981-03-06 1982-08-31 Euteco Impianti S.P.A. Catalyst for the polymerization of alpha-olefins
DE3247919A1 (en) * 1982-12-24 1984-06-28 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING HOMO AND COPOLYMERISATS FROM (ALPHA) MONOOLEFINES BY MEANS OF A ZIEGLER-NATTA CATALYST SYSTEM
DE3342039A1 (en) * 1983-11-22 1985-05-30 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING HOMO AND COPOLYMERISATES FROM (ALPHA) MONOOLEFINES BY MEANS OF A ZIEGLER-NATTA CATALYST SYSTEM
GB8513000D0 (en) * 1985-05-22 1985-06-26 Shell Int Research Removing contaminants from liquid tici4 phase
DE3538099A1 (en) * 1985-10-26 1987-04-30 Ruhrchemie Ag METHOD FOR HOMO AND MIXED POLYMERIZATION OF OLEFINS
US4771024A (en) * 1986-02-28 1988-09-13 Shell Oil Company Olefin polymerization catalyst composition

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FR2016081A1 (en) * 1968-08-21 1970-04-30 Hoechst Ag
FR2324652A1 (en) * 1975-09-19 1977-04-15 Montedison Spa CATALYSTS AND CATALYTIC COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

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FR2016081A1 (en) * 1968-08-21 1970-04-30 Hoechst Ag
FR2324652A1 (en) * 1975-09-19 1977-04-15 Montedison Spa CATALYSTS AND CATALYTIC COMPONENTS FOR THE POLYMERIZATION OF OLEFINS

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036536A1 (en) * 1980-03-15 1981-09-30 BASF Aktiengesellschaft Process for producing alpha monoolefin homo and copolymers
EP0070749A1 (en) * 1981-07-20 1983-01-26 Société Chimique des Charbonnages Homogeneous catalyst containing a transition metal and magnesium, process for its preparation and its use in the polymerisation of ethylene
US4465781A (en) * 1981-07-20 1984-08-14 Societe Chimique Des Charbonnages-Cdf Chimie Halogenated catalyst for ethylene polymerization containing a transition metal and magnesium and process for its preparation
EP0136112A2 (en) * 1983-08-30 1985-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Catalyst component for polymerization of olefins
EP0136112A3 (en) * 1983-08-30 1985-07-03 Toa Nenryo Kogyo Kabushiki Kaisha Catalyst component for polymerization of olefins
EP0135973A2 (en) * 1983-09-20 1985-04-03 Shell Internationale Researchmaatschappij B.V. Olefin polymerization catalyst components and polymerization process
EP0135973A3 (en) * 1983-09-20 1985-05-08 Shell Internationale Research Maatschappij B.V. Olefin polymerization catalyst components and polymerization process
TR22704A (en) * 1983-09-20 1988-04-13 Shell Int Research OLEFIN POLYMERIZING CATALIZOERUE COMPONENTS AND POLYMERIZING PROCEDURE

Also Published As

Publication number Publication date
US4224184A (en) 1980-09-23
ATE6068T1 (en) 1984-02-15
EP0007565B1 (en) 1984-02-01
DE2966604D1 (en) 1984-03-08
DE2831830A1 (en) 1980-01-31

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